CN217983522U

CN217983522U - Battery cell

Info

Publication number: CN217983522U
Application number: CN202221347229.9U
Authority: CN
Inventors: 宋长青; 周生鹏; 于雪; 王旭; 刘喆
Original assignee: Tianjin Haili New Energy Science And Technology Co ltd
Current assignee: Tianjin Haili New Energy Science And Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-12-06
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a battery cell, including electric core body, the outer wall cover of electric core body is equipped with the protective housing, first recess has all been seted up to the both sides wall of protective housing, the fixed multiunit first spring, multiunit that sets up in inside of first recess the first limiting plate of one end fixed connection of first spring, the first baffle of one end fixed connection of first spring is kept away from to first limiting plate, the second recess has all been seted up to the preceding back wall of protective housing, the fixed multiunit second spring, multiunit that sets up in inside of second recess the one end fixed connection second limiting plate of second spring, the one end fixedly connected with second baffle of second spring is kept away from to the second limiting plate, the fixed anti-falling board that is provided with in top of protective housing, the bottom of protective housing is provided with the mount pad, through bolt threaded connection between protective housing and the mount pad. The utility model discloses a battery electricity core, this device protection is effectual, and simple to operate.

Description

Battery cell

Technical Field

The utility model relates to a battery electricity core technical field especially relates to a battery electricity core.

Background

Refers to a single electrochemical cell containing a positive electrode and a negative electrode, which is not generally used directly. Unlike the battery which contains a protection circuit and a shell and can be directly used, the composition of the lithium ion secondary rechargeable battery is as follows: and the battery cell + a protection circuit board. The battery core is formed by removing the protective circuit board from the rechargeable battery. He is the storage portion in the rechargeable battery. The quality of the battery core directly determines the quality of the rechargeable battery.

The utility model provides a lithium battery cell in current patent (CN 215377557U), including shell, electric core body, anodal ear, negative pole ear, draw-in groove one, apron, spread groove, elasticity plastic board and fixture block one, the inside of shell is inserted and is equipped with electric core body, the anodal ear of one end difference fixed mounting and the negative pole ear of electric core body, draw-in groove one has all been seted up to the both sides of shell, the one end fixed mounting of shell has the apron, the spread groove has all been seted up with the position that anodal ear and negative pole ear correspond to the apron surface. The utility model discloses in, the spring that sets up, through inside and the inboard spring and the backing plate of installing of shell, extrude the backing plate through the spring, make the backing plate fix electric core body, when electric core drops or takes place acutely to collide, the shell can be protected electric core body's surface with the apron, can alleviate the vibrations that the collision produced through the spring to electric core body's influence, reduce the injury of collision to electric core body, but protection device installs loaded down with trivial details, and the protective range has the vacancy, therefore we need a battery electricity core.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a battery cell.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a battery cell comprises a cell body, wherein a protective shell is sleeved on the outer wall of the cell body, first grooves are formed in two side walls of the protective shell, a plurality of groups of first springs are fixedly arranged in the first grooves, one ends of the plurality of groups of first springs are fixedly connected with a first limiting plate, one ends, far away from the first springs, of the first limiting plate are fixedly connected with a first baffle, second grooves are formed in the front wall and the rear wall of the protective shell, a plurality of groups of second springs are fixedly arranged in the second grooves, one ends of the plurality of groups of second springs are fixedly connected with a second limiting plate, and one ends, far away from the second springs, of the second limiting plate are fixedly connected with a second baffle;

the top of protective housing is fixed and is provided with prevents falling the board, the bottom of protective housing is provided with the mount pad, pass through bolt threaded connection between protective housing and the mount pad, the first screw of multiunit is seted up to the bottom of protective housing, the second screw has been seted up to the bottom of mount pad.

As a further description of the above technical solution:

and two groups of first limiting blocks are fixedly arranged at the upper end and the lower end of the inner wall of the first groove.

As a further description of the above technical solution:

and two groups of second limiting blocks are fixedly arranged at the upper end and the lower end of the inner wall of the second groove.

As a further description of the above technical solution:

a buffer layer is fixedly arranged between the anti-falling plate and the protective shell.

As a further description of the above technical solution:

and the first screw hole and the second screw hole are internally connected with bolts through threads.

As a further description of the above technical solution:

and positive lugs and negative lugs are fixedly arranged on two sides of the top end of the battery cell body.

As a further description of the above technical solution:

the first spring and the second spring are made of elastic steel.

As a further description of the above technical solution:

the first screw holes and the second screw holes are four groups and are arranged in a rectangular array.

The utility model discloses following beneficial effect has:

1. the utility model provides a pair of battery cell, be provided with the protective housing in this device, two sets of first recesses have been seted up to the both sides wall of protective housing, the inside multiunit first spring that is provided with of first recess, first spring coupling first limiting plate and first baffle, two sets of second recesses have been seted up to the preceding back wall of protective housing, the inside of second recess is provided with multiunit second spring, the first limiting plate of second spring fixed connection and second baffle, when electric core drops, the first baffle and the second baffle of protective housing outer wall cushion through first spring and second spring, protect electric core, the protection is effectual.

2. The utility model provides a pair of battery cell, the fixed board that prevents falling that is provided with in protective housing top in this device prevents falling between board and the protective housing and fixedly is provided with the buffer layer, and prevents falling the height that highly is greater than electric core of board, protects the top of electric core.

3. The utility model provides a pair of battery cell, first screw has been seted up to the protective housing bottom that sets up in this device, and through the second screw of first screw and bolt fixed connection mount pad, the outer wall at electric core is established to the protective housing cover, and the bottom of electric core is protected to the mount pad, and protective housing simple to operate.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a battery cell according to the present invention;

fig. 2 is a front sectional view of a battery cell according to the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a side sectional view of a battery cell according to the present invention;

fig. 5 is an enlarged view at B in fig. 4.

Illustration of the drawings:

1. a cell body; 2. a positive tab; 3. a negative tab; 4. a fall-resistant plate; 5. a protective shell; 6. a mounting seat; 7. a first limit plate; 8. a first baffle; 9. a first groove; 10. a buffer layer; 11. a first spring; 12. a first stopper; 13. a first screw hole; 14. a second screw hole; 15. a bolt; 16. a second groove; 17. a second baffle; 18. a second limiting plate; 19. a second spring; 20. and a second limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a battery cell comprises a cell body 1, wherein a protective shell 5 is sleeved on the outer wall of the cell body 1, first grooves 9 are formed in two side walls of the protective shell 5, a plurality of groups of first springs 11 are fixedly arranged in the first grooves 9, the number of the first springs 11 in each group of first grooves 9 is four, one ends of the plurality of groups of first springs 11 are fixedly connected with a first limiting plate 7, one end, away from the first spring 11, of the first limiting plate 7 is fixedly connected with a first baffle plate 8, second grooves 16 are formed in the front wall and the rear wall of the protective shell 5, a plurality of groups of second springs 19 are fixedly arranged in the second grooves 16, one ends of the plurality of groups of second springs 19 are fixedly connected with a second limiting plate 18, and one end, away from the second spring 19, of the second limiting plate 18 is fixedly connected with a second baffle plate 17;

the fixed board 4 that prevents falling that is provided with in top of protective housing 5, through preventing falling the top that board 4 protected electric core body 1, the bottom of protective housing 5 is provided with mount pad 6, and the bottom of electric core body 1 can be protected to mount pad 6, through bolt 15 threaded connection between protective housing 5 and the mount pad 6, and the first screw 13 of multiunit is seted up to the bottom of protective housing 5, and second screw 14 has been seted up to the bottom of mount pad 6.

Fixed two sets of first stoppers 12 that are provided with about the inner wall of first recess 9, cooperation through first limiting plate 7, make first baffle 8 can not break away from first recess 9, the fixed two sets of second stoppers 20 that are provided with about the inner wall of second recess 16, through the cooperation of second limiting plate 18, make second baffle 17 can not break away from second recess 16, prevent fixedly being provided with buffer layer 10 between board 4 and the protective housing 5 of falling, further protect electric core body 1, the internal thread of first screw 13 and second screw 14 is connected with bolt 15, the fixed anodal ear 2 and the negative pole ear 3 that are provided with in top both sides of electric core body 1, first spring 11 and second spring 19 are the elastic steel material, first screw 13 and second screw 14 are four groups, become the setting of rectangular array.

The working principle is as follows: when the cell body 1 is used, the protective shell 5 is sleeved on the outer wall of the cell body 1, the bolt 15 is used for connecting the mounting seat 6 with the first screw hole 13 and the second screw hole 14 of the protective shell 5 in a threaded manner, when the cell body 1 drops, the first baffle plate 8 and the second baffle plate 17 are buffered through the first spring 11 and the second spring 19, and the anti-falling plate 4 protects the top end of the cell body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A battery electric core comprises an electric core body (1), and is characterized in that: a protective shell (5) is sleeved on the outer wall of the cell body (1), first grooves (9) are formed in two side walls of the protective shell (5), multiple groups of first springs (11) are fixedly arranged in the first grooves (9), one end of each group of first springs (11) is fixedly connected with a first limiting plate (7), one end, far away from the first springs (11), of each first limiting plate (7) is fixedly connected with a first baffle (8), second grooves (16) are formed in the front wall and the rear wall of the protective shell (5), multiple groups of second springs (19) are fixedly arranged in the second grooves (16), one end of each group of second springs (19) is fixedly connected with a second limiting plate (18), and one end, far away from the second springs (19), of each second limiting plate (18) is fixedly connected with a second baffle (17);

the top of protective housing (5) is fixed to be provided with prevents falling board (4), the bottom of protective housing (5) is provided with mount pad (6), through bolt (15) threaded connection between protective housing (5) and mount pad (6), multiunit first screw (13) are seted up to the bottom of protective housing (5), second screw (14) have been seted up to the bottom of mount pad (6).

2. The battery cell of claim 1, wherein: two groups of first limiting blocks (12) are fixedly arranged at the upper end and the lower end of the inner wall of the first groove (9).

3. The battery cell of claim 1, wherein: and two groups of second limiting blocks (20) are fixedly arranged at the upper end and the lower end of the inner wall of the second groove (16).

4. The battery cell of claim 1, wherein: a buffer layer (10) is fixedly arranged between the anti-falling plate (4) and the protective shell (5).

5. The battery cell of claim 1, wherein: and bolts (15) are connected with the inner threads of the first screw hole (13) and the second screw hole (14).

6. The battery cell of claim 1, wherein: and positive lugs (2) and negative lugs (3) are fixedly arranged on two sides of the top end of the battery cell body (1) respectively.

7. The battery cell of claim 1, wherein: the first spring (11) and the second spring (19) are both made of elastic steel.

8. The battery cell of claim 1, wherein: the first screw holes (13) and the second screw holes (14) are four groups, and the four groups of first screw holes (13) and the four groups of second screw holes (14) are arranged in a rectangular array.